Count On This Classic Wooden "Calculator" For Years Of Play And Learning! The Solid Hardwood Base And Frame Holds 10 Thick Coated Wires With 10 Colorful Wooden Beads On Each -- 100 Beads In All. Slide The Beads For A Visual And Hands-On Way To Learn Numbers And Math Concepts And To Explore Patterns And Colors. Fun Activity Ideas Included!